: Requires a prescription to be faxed or emailed from your vet .

Several reputable Canadian platforms offer Revolution, often providing tiered pricing based on the number of doses:

: In Canada, the recommended heartworm protection season typically runs from June 1st to November 1st , though year-round treatment may be necessary if traveling to warmer climates . Buy Revolution for Dogs Flea & Heartworm Treatment

: It is a monthly topical "spot-on" treatment applied to the skin between the shoulder blades .

: Eliminates heartworm larvae when administered monthly .